The present study investigated the influence of two factors, namely, argumentation approach and students' prior knowledge on the learning of scientific concept and argumentation in descriptive and theoretical scientific concept-based topics. Four 7th grade science classes totalling 138 students participated and were assigned to four groups…

Is there an achievement gap for online reading ability based on income inequality that is separate from the achievement gap in traditional, offline reading? This possibility was examined between students in two pseudonymous school districts: West Town (economically advantaged) and East Town (economically challenged; N = 256). Performance-based…

In an experimental study (N = 209), the authors compared the effects of exposure to typical middle-school written science content when presented in the context of the scientific discovery narrative and when presented in a more traditional nonnarrative format on 7th and 8th grade students in the United States. The development of texts was…